This is going to kill you. It may or may not be the cause of your anxiety, but its not natural and very very detrimental to your health. Find another shift or change jobs, regardless of this being a cause of your anxiety.
Another potential cause of anxiety could be low E2, (from low dosing). You have not posted bloods, so this is not certain. But, for example in bodybuilders, EQ (boldenone) causes low E2 (by lowering aromatisation) and is notorious for causing anxiety. Get some trough bloods including sensitive E2, ft and DHT.
